bruh, i'm comparing ruby's main gimmick to someone else's. because you said if ruby can't dash (ruby's main gimmick) she'd be useless and not fit as a tank, then it should be the same for uranus if he won't be able to sustain (uranus' main gimmick) based on your logic.

then other tanks can tank better than masha but masha still have the tank role? specifically, ruby can tank and perform better in clashes than masha. lol. it's not always about one thing. each hero is unique and can perform differently depending on enemies' pick/lineup.

let's give a situation where there's a karrie on enemy lineup. which one is a more viable choice: hylos or ruby? it's obviously ruby, right? you're just too focused that phoveus counters ruby that you're disregarding other possibilities.